GLU3 is now a "real" project with hosting on freedesktop.org! This means that there is a development mailing list, and the GIT repo has moved.
git://anongit.freedesktop.org/git/glu3
My hope is to have a 1.0 release out in the next month or so. I've got some new functionality that I'm working on, but I should be able to finish most of that this weekend.